1) During these two days I made another one-page site (single-niche) for my old niche.
I just checked - this site was just indexed by Google and Bing.

2) I also had a single-niche site that I did a long time ago. I had to remove it due to hosting restrictions. And I launched it on a new unlimited hosting now. Site was de-indexed long time ago, But Google doesn't want to index this site again. I'll just leave it as is, maybe it'll be indexed.

3) About my old multi-niche site: things are bad. I do not understand why the site has lost ranking on all keywords. Maybe it was because of down time hosting. Maybe I did something wrong. Maybe it's because I stopped updating and left the site.
In any case, I can't keep track of all the sites at the same time. So I'm focused on other sites.

4) My new multi-niche site is doing well (with expired domain).
All articles are indexed (except for the one article I added yesterday). But the articles are not ranked yet.

I found one new good keyword, I want to check it out.
I already posted one article for this niche yesterday on a multi-niche site. And Today I want to create a single niche site too, for that keyword.

To be honest, I don't work as hard as I can. I create only one or two articles every day, I think it's ok. If I try to do more - then articles are low-quality.
I began to notice that in SEO - even small details matter.

My ONE Thing:

1) Create one more single-niche site for keyword that I found (I will register a new domain right now)

After a while, I'll have a lot of sites, and then I'll just focus on the best of them.
I hope after 2-3 weeks, some of them will bring the first leads from the new niches.
I wish I'd known sooner if I was doing things the right way or not. But I need to wait a bit.)

So you also got hit with this latest google hit on cpa websites .........hello darkness my old friend......